<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            width: 200px;
            height: 200px;
            /* background-color: red; */
            border: 5px solid;
            border-color: red blue yellowgreen yellow;
        }
        div:hover{
            transform: rotate(90deg);
            /* transform: scale(1.2) translateX(200px) skew(20deg) rotate(45deg); */
        }
    </style>
</head>
<body>
    <div>

    </div>
</body>
</html>